GraphLab -- http://docs.graphlab.org/collaborative_filtering.html#SVD_PLUS_PLUS

On Tue, Apr 30, 2013 at 3:30 PM, Chirag Lakhani <clakh...@zaloni.com> wrote:
> Do you know of any other large scale machine learning platforms that do
> incorporate it?
>
>
> On Tue, Apr 30, 2013 at 10:21 AM, Sean Owen <sro...@gmail.com> wrote:
>
>> No, time is in the data model but nothing uses it that I know of.
>>
>> On Tue, Apr 30, 2013 at 3:18 PM, Chirag Lakhani <clakh...@zaloni.com>
>> wrote:
>> > I was wondering if the collaborative filtering library in Mahout has any
>> > algorithms that incorporate concept drift i.e. time dynamics.  From my
>> own
>> > research I have come across the BellKor algorithm called TimeSVD++ and
>> > there is a recent paper using hidden markov models with collaborative
>> > filtering.  Has anything of this sort been implemented in Mahout?
>> >
>> > I am working on a problem where a company offers many different services
>> > and the dataset is their subscriber's subscription levels for each
>> service
>> > at different time snapshots.  I am interested in using some sort of
>> >  recommender system that can give recommendations for new services based
>> on
>> > such data.
>>

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